Another round of heavy rainfall occurred during the middle part of the month.  The month's most widespread rainfall occurred from late on the 10th until early on the 13th when an average of 2.42 inches of rain fell across the state. Nearly all of Iowa recorded at least an inch of rain during this 60 hour period with Adair reporting the most with 6.70 inches. Rain fell frequently during the last half of the month but amounts were on the light side with a state average of only 0.84 inches after the 14th. As was the case in April, precipitation was generally well below normal in eastern Iowa and near to above normal elsewhere. Preliminary monthly totals vary from 1.45 inches at Washington, their driest May since 1992, to 8.50 inches at Estherville, their highest May total since 1965.  Streamflow was elevated throughout the month of May across nearly all of Iowa.  Heavy rain occurring in the middle of May brought numerous rivers across the Des Moines HAS to bankfull levels and some places would experience flooding.  Flooding was by far the worst across northern Iowa, where inflow into the upper Des Moines basin would bring significant flooding to the areas near Estherville and Algona and points immediately downstream.  Elevated river conditions would then persist through the end of the month.  The flooding did cause some damage around the state, however most of the flooding was in agricultural lands.  The actual amount of property damage was relatively limited.

Flood in CARROLL, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in CLARKE, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in DALLAS, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in CRAWFORD, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in POCAHONTAS, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in EMMET, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in GREENE, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in POLK, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in JASPER, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in WARREN, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in WEBSTER, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in KOSSUTH, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in BOONE, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in MONROE, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in PALO ALTO, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in SAC, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in WAPELLO, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in ADAIR, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in HAMILTON, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in WINNEBAGO, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in HANCOCK, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in WRIGHT, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in HUMBOLDT, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in MADISON, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in APPANOOSE, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in AUDUBON, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in CALHOUN, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in GUTHRIE, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in MAHASKA, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in MARION, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in LUCAS, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.

Flood in DAVIS, IOWA
From 13-MAY-05 02:00:00 to 17-MAY-05 12:00:00 (CST)
Property damage: 30K
Reported by: OFFICIAL NWS OBS.